Molecular mass by vapor density vapor is still being emitted from the flask when it is removed from the bath?

the temperature of the flask and vapor is still well above the room temperature when the flask and vapor are weighed

What does a large value for the van der Waals constant a tell you about a substance? what would a values of zero for this constant mean?

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride